TestMu 2025 - The Largest Virtual Software Testing Conference is Back | 50,000+ Attendees

How to use generate_presigned_url method in localstack

Best Python code snippet using localstack_python

uploadToS3.py

...39        print("Could not upload local file to s3")40        print(error)41        exit(-1)42    try:43        response.append(s3.generate_presigned_url('get_object', Params={'Bucket': bucket, 'Key': remote_file}, ExpiresIn=(60*60*24*1)))44        response.append(s3.generate_presigned_url('get_object', Params={'Bucket': bucket, 'Key': remote_file},45                                                  ExpiresIn=(60 * 60 * 24 * 2)))46        response.append(s3.generate_presigned_url('get_object', Params={'Bucket': bucket, 'Key': remote_file},47                                                  ExpiresIn=(60 * 60 * 24 * 3)))48        response.append(s3.generate_presigned_url('get_object', Params={'Bucket': bucket, 'Key': remote_file},49                                                  ExpiresIn=(60 * 60 * 24 * 4)))50        response.append(s3.generate_presigned_url('get_object', Params={'Bucket': bucket, 'Key': remote_file},51                                                  ExpiresIn=(60 * 60 * 24 * 5)))52        response.append(s3.generate_presigned_url('get_object', Params={'Bucket': bucket, 'Key': remote_file},53                                                  ExpiresIn=(60 * 60 * 24 * 6)))54        response.append(s3.generate_presigned_url('get_object', Params={'Bucket': bucket,'Key': remote_file}, ExpiresIn=604800))55    except ClientError as e:56        logging.error(e)57        return None58    return response59def get_file_path():60    parser = argparse.ArgumentParser(description="Select a file to upload to S3")61    parser.add_argument(62        "--file",63        "-f",64        #default='default',65        help="Specifies the file to be uploaded ",66        required=True67    )68    args = parser.parse_args()...

get_presigned_url.py

Source: get_presigned_url.py

...14if __name__ == "__main__":15    import sys16    client_method = sys.argv[1]17    if client_method == 'list_buckets':18        url = cli.generate_presigned_url(19            ClientMethod='list_buckets',20            ExpiresIn=60000,21        )22        print url23    elif client_method == 'create_bucket':24        url = cli.generate_presigned_url(25            ClientMethod='create_bucket',26            Params={27                'Bucket': sys.argv[2],28            },29            ExpiresIn=60000,30        )31        print url32    elif client_method == 'put_object':33        url = cli.generate_presigned_url(34            ClientMethod='put_object',35            Params={36                'Bucket': sys.argv[2],37                'Key': sys.argv[3],38            },39            ExpiresIn=60000,40        )41        print url42    elif client_method == 'get_object':43        url = cli.generate_presigned_url(44            ClientMethod='get_object',45            Params={46                'Bucket': sys.argv[2],47                'Key': sys.argv[3],48            },49            ExpiresIn=60000,50        )51        print url52    elif client_method == 'list_objects':53        url = cli.generate_presigned_url(54            ClientMethod='list_objects',55            Params={56                'Bucket': sys.argv[2],57            },58            ExpiresIn=6000,59        )60        print url61    elif client_method == 'delete_object':62        url = cli.generate_presigned_url(63            ClientMethod='delete_object',64            Params={65                'Bucket': sys.argv[2],66                'Key': sys.argv[3],67            },68            ExpiresIn=60000,69        )70        print url71    elif client_method == 'delete_bucket':72        url = cli.generate_presigned_url(73            ClientMethod='delete_bucket',74            Params={75                'Bucket': sys.argv[2],76            },77            ExpiresIn=60000,78        )...

test_s3link.py

Source: test_s3link.py

1import pytest2import botocore3import s3link4import test_constants5@pytest.fixture6def mock_s3(mocker):7    mocker.patch.object(s3link, 'S3')8    return s3link.S39@pytest.fixture10def mock_bucket(mocker):11    mocker.patch.object(s3link, 'BUCKET')12    return s3link.BUCKET13def test_get_presigned_url_none_key(mock_s3, mock_bucket):14    assert s3link.get_presigned_url(None) is None15    mock_bucket.Object.assert_not_called()16    mock_s3.generate_presigned_url.assert_not_called()17def test_get_presigned_url_key_not_found(mock_s3, mock_bucket):18    mock_bucket.Object.return_value.load.side_effect = botocore.exceptions.ClientError(19        {20            'Error': {21                'Code': '404'22            }23        }, None24    )25    assert s3link.get_presigned_url('foo') is None26    mock_bucket.Object.assert_called_with('foo')27    mock_s3.generate_presigned_url.assert_not_called()28def test_get_presigned_url_other_exception(mock_s3, mock_bucket):29    mock_bucket.Object.return_value.load.side_effect = botocore.exceptions.ClientError(30        {31            'Error': {32                'Code': 'boom!'33            }34        }, None35    )36    with pytest.raises(botocore.exceptions.ClientError):37        s3link.get_presigned_url('foo')38    mock_bucket.Object.assert_called_with('foo')39    mock_s3.generate_presigned_url.assert_not_called()40def test_get_presigned_url_key_exists(mock_s3, mock_bucket):41    mock_s3.generate_presigned_url.return_value = 'presigned-url'42    assert s3link.get_presigned_url('foo') == 'presigned-url'43    mock_bucket.Object.assert_called_with('foo')44    mock_bucket.Object.return_value.load.assert_called_with()45    mock_s3.generate_presigned_url.assert_called_with(46        ClientMethod='get_object',47        ExpiresIn=600,48        Params={49            'Bucket': test_constants.BUCKET_NAME,50            'Key': 'foo'51        }...

Blogs

Check out the latest blogs from LambdaTest on this topic:

Fault-Based Testing and the Pesticide Paradox

In some sense, testing can be more difficult than coding, as validating the efficiency of the test cases (i.e., the ‘goodness’ of your tests) can be much harder than validating code correctness. In practice, the tests are just executed without any validation beyond the pass/fail verdict. On the contrary, the code is (hopefully) always validated by testing. By designing and executing the test cases the result is that some tests have passed, and some others have failed. Testers do not know much about how many bugs remain in the code, nor about their bug-revealing efficiency.

Getting Rid of Technical Debt in Agile Projects

Technical debt was originally defined as code restructuring, but in today’s fast-paced software delivery environment, it has evolved. Technical debt may be anything that the software development team puts off for later, such as ineffective code, unfixed defects, lacking unit tests, excessive manual tests, or missing automated tests. And, like financial debt, it is challenging to pay back.

Do you possess the necessary characteristics to adopt an Agile testing mindset?

To understand the agile testing mindset, we first need to determine what makes a team “agile.” To me, an agile team continually focuses on becoming self-organized and cross-functional to be able to complete any challenge they may face during a project.

Get A Seamless Digital Experience With #LambdaTestYourBusiness????

The holidays are just around the corner, and with Christmas and New Year celebrations coming up, everyone is busy preparing for the festivities! And during this busy time of year, LambdaTest also prepped something special for our beloved developers and testers – #LambdaTestYourBusiness

How To Use CSS Contain Property To Optimize Browsers

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.